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src/cudamatrix/cu-tp-matrix.cc
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// cudamatrix/cu-tp-matrix.cc
// Copyright 2009-2013 Karel Vesely
// 2014-2015 Johns Hopkins University (author: Daniel Povey)
// See ../../COPYING for clarification regarding multiple authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
// WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
// MERCHANTABLITY OR NON-INFRINGEMENT.
// See the Apache 2 License for the specific language governing permissions and
// limitations under the License.
#if HAVE_CUDA==1
#include <cuda_runtime_api.h>
#include <cublas_v2.h>
#endif
#include "base/timer.h"
#include "cudamatrix/cu-common.h"
#include "cudamatrix/cu-vector.h"
#include "cudamatrix/cu-device.h"
#include "cudamatrix/cu-kernels.h"
#include "cudamatrix/cu-math.h"
#include "cudamatrix/cu-matrix.h"
#include "cudamatrix/cu-tp-matrix.h"
#include "cudamatrix/cu-sp-matrix.h"
#include "cudamatrix/cublas-wrappers.h"
namespace kaldi {
template<typename Real>
CuTpMatrix<Real>::CuTpMatrix(const CuMatrixBase<Real> &orig, MatrixTransposeType trans):
CuPackedMatrix<Real>(orig.NumRows(), kUndefined) {
KALDI_ASSERT(orig.NumRows() == orig.NumCols());
this->CopyFromMat(orig, trans);
}
template<typename Real>
void CuTpMatrix<Real>::Cholesky(const CuSpMatrix<Real> &orig) {
#if HAVE_CUDA==1
if (CuDevice::Instantiate().Enabled()) {
CuMatrix<Real> tmp(orig);
tmp.Cholesky();
this->CopyFromMat(tmp, kNoTrans);
} else
#endif
{
this->Mat().Cholesky(orig.Mat());
}
}
template<typename Real>
void CuTpMatrix<Real>::Invert() {
#if HAVE_CUDA==1
if (CuDevice::Instantiate().Enabled()) {
if (this->num_rows_ == 0) return;
CuTimer tim;
int dimBlock(CU2DBLOCK);
int dimGrid(n_blocks(this->NumRows(), CU2DBLOCK));
CuMatrix<Real> tmp(this->NumRows(), this->NumRows());
int dim = this->NumRows();
Real alpha = 1.0;
cuda_set_diag(dimGrid, dimBlock, tmp.Data(), alpha, tmp.Dim());
CU_SAFE_CALL(cudaGetLastError());
CuMatrix<Real> tmp2(dim, dim);
tmp2.CopyFromTp(*this);
CUBLAS_SAFE_CALL(cublas_trsm(GetCublasHandle(), dim, dim, alpha, tmp2.Data(), tmp2.Dim().stride,
tmp.Data(), tmp.Dim().stride));
this->CopyFromMat(tmp, kNoTrans);
CuDevice::Instantiate().AccuProfile(__func__, tim);
} else
#endif
{
Mat().Invert();
}
}
template<typename Real>
void CuTpMatrix<Real>::CopyFromMat(const CuMatrixBase<Real> &M,
MatrixTransposeType Trans) {
#if HAVE_CUDA==1
if (CuDevice::Instantiate().Enabled()) {
MatrixIndexT num_rows = this->num_rows_;
KALDI_ASSERT(num_rows == M.NumRows() && this->num_rows_ == M.NumCols());
if (num_rows == 0) return;
CuTimer tim;
dim3 dimBlock(CU2DBLOCK, CU2DBLOCK);
dim3 dimGrid(n_blocks(num_rows, CU2DBLOCK), n_blocks(num_rows, CU2DBLOCK));
if (Trans == kNoTrans) {
cuda_take_lower(dimGrid, dimBlock, M.Data(), this->data_, M.Dim());
} else {
cuda_take_upper(dimGrid, dimBlock, M.Data(), this->data_, M.Dim());
}
CU_SAFE_CALL(cudaGetLastError());
CuDevice::Instantiate().AccuProfile(__func__, tim);
} else
#endif
{
Mat().CopyFromMat(M.Mat(), Trans);
}
}
template<class Real>
TpMatrix<Real>::TpMatrix(const CuTpMatrix<Real> &cu) {
this->Resize(cu.NumRows());
this->CopyFromMat(cu);
}
template TpMatrix<float>::TpMatrix(const CuTpMatrix<float> &cu);
template TpMatrix<double>::TpMatrix(const CuTpMatrix<double> &cu);
template<class Real>
void TpMatrix<Real>::CopyFromMat(const CuTpMatrix<Real> &other) {
other.CopyToPacked(this);
}
// instantiate the template above.
template void TpMatrix<float>::CopyFromMat(const CuTpMatrix<float> &other);
template void TpMatrix<double>::CopyFromMat(const CuTpMatrix<double> &other);
template <class Real>
CuTpMatrix<Real>& CuTpMatrix<Real>::operator = (const CuTpMatrix<Real> &in) {
this->Resize(in.NumRows(), kUndefined);
this->CopyFromPacked(in);
return *this;
}
template class CuTpMatrix<float>;
template class CuTpMatrix<double>;
} // namespace
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